Complex NumbersMedium
Question
Modulus of a non-zero complex number z, satisfying z + 
= 0, || - 4zi = z2 is -
= 0, || - 4zi = z2 is -Options
A.1
B.2
C.3
D.4
Solution
x = 0 ∴ z = yi
|y| + 4y = - y2 y = - 3
⇒ |z| = 3
|y| + 4y = - y2 y = - 3
⇒ |z| = 3
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